Question 130619
let x="other leg", so (x/2)+3="one leg"


since the legs of a right triangle are perpendicular
__ area=one half of the product of the legs


54=(1/2)(x)((x/2)+3) __ multiplying by 4 __ 216=x^2+6x __ subtracting 216 __ 0=x^2+6x-216


factoring 0=(x+18)(x-12) __ 0=x+18 and 0=x-12